RHSA-2026:68513 — Security Advisory

An update for the virt:rhel module is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Kernel-based Virtual Machine (KVM) offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual machines using KVM.The packages also provide APIs for managing and interacting with the virtualized systems.

Security Fix(es):

• qemu-kvm: VNC WebSocket handshake use-after-free (CVE-2025-11234)

• virt:rhel/libvirt: swtpm privilege escalation via symlink following (CVE-2026-63622)

• virt:rhel/libvirt: Integer overflow in NodeGetFreePages RPC handler leading to heap buffer overflow (CVE-2026-18917 )

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.